_:b57580980	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/349f9d6b38bda8402d0af58bb8167d2572084e78/0> .
_:b57580980	<http://www.w3.org/ns/oa#hasSelector>	_:b57580981 .
_:b57580981	<http://www.w3.org/ns/oa#exact>	"observed" .
_:b57580981	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .